Carbureter.



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CARBURETER. APPLICATION FILED MAY 2. |914.

y gfm Patented Apr. 23, 1918.

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apecication of Letters Patent.

Patented dpr.. 2d, 1912..

hpphcatlon med May 2, 191s. Serial No. 835,209.

To all 'whom it may concern.:

Be it known that l, GERRIT VAN DAAM, a citizenl of the United States, residing at Buffalo, lin the county of Erie,State of New York, haveinvented a new and usefuliCarbureter, of which the following is a specication.

ll/ly invention relates to improrements in carbureters for forming a combustible mixture.

My invention comprises in a compact, self-containing structure, a tank or fuel container, means for heating the fuel contained in said tank,y means for heating the air delivered into the fuel, means for heating the resultant tuel vapors adjustable means for delivering pre-heated air into said vapors to vary the richness of the mixture, means tor eecting the preliminary heating ot the fuel within the tank, and other details of construction.

Referring to the drawings which illustrate merely by way ont example a suitable embodiment of my invention- Figure 1 is a plan view of my improved carbureter.

Fig. 2 is a section on line 2--2 oi Fig. 3.

liig. 3 is a section on line 3 3 ot Fig. 1..

Fig. t is a section ot the fuel Vsupply controlling means..

Similar numerals refer, to similar parts throughout the several views.

My improved carbureter is especially adapted for use with the internalrombustion engine of an automobile, especially where the employment ot a cheaper fuel than gasolene is desired and the space tor forming the combustible mixture is limited.,

The tank or. receptacle d adapted to contain a body oit. liquid hiel such, for exam le as kerosene, is provided with a centra ly disposed top lopening divided into separate openings or chambers 'l and 9 by wall or partition 26 depending trom wall 10 and extending diametrically across the carbureter. "llank 6 is suspended trom the annun vlar wall 9 projecting inwardly trom wall 19 which terms a surrounding jacket on all sides ot the tuel tank. Wall 10 is suitably termed and apertured at 11 and 12 to receive the exhaust pipe 19..

lt will be understood that the passage of the het exhaust gases through space 11i sur rounding tank ti will serve to heat up the ne tual hcyin the tenir and to the same in a heated condition. llt will also be if desired, the circulating of the engine might be emspace 14 as the heating me- The curved pipe section17 is threaded into inlet opening and is provided at its outer end with screen cap 18 to prevent dust and dirt from being taken in with the air. Automatic valve 19 is hinged within pipe 17 at 20 and is adapted normally to engage valve seat 21 under tension or' spring 22 which is secured at one end to the valve and at the other end to rod 23. Rod 23 is threaded to pipe 17 as shown and is provided with knurled element 2d for manual operation to control the tension ot sprin 22 and., consequently, the air supply throng the valve.

Wall 26, suspended as above stated trom the top ot the carbureter, has the horizontally extending extension 27, and the vertically extending extension 28 forming with wall 29 of tank 6., the passage 30- leading irom chamber i to the bottom of the incl tank. Passage 30 conforms to the contour of adjacent walls 28 and 29, and permits the thorough heating of the incoming air from valve 19 *byv the heating mediuml in space 1d.

As means for edecting a preliminary heating of the fuel body when it is desired to start the engine trom the cold state, l pro vide the electric heater 31 conforming to the contour of tank 6 and provided with the depending marginal dange32 parallel with the side walls oit tank 6, and with apertures 33 tor the passage ot the gaseous vapors.. ll-leater 31 is held in place within tank d by pipe 3d threaded through the heater and provided on its lower end with nut 52. p"l`his pipe also serves as a conduit tor iced wires 35 connected with plug 36.' lt will be understood that the liquid :incl inclosed within the circular de ending marginal Harige 32 and immediatelpy above the heater may be quickly heated .by the passage et the elecquickly heat u tric current through the heater, to a de ee be dispensed with.

In the operation of the device, upon the suction stroke of the engine piston, fresh air is drawn through screen 18 and manually adjustable spring-controlled valve 19, through chamber 7 and down through space 30 and intothe fuel body, the level of which is indicated at 33. As the indrawn air passes between walls 28 and 29 it is in close proximity to chamber 14 and is consequently raised to a high temperature. It will be understood that in passing into the` fuel body the air first passes through any portion of the fuel which may be present between walls 28 and 29 during the suction stroke of the piston; which fuel will have been thoroughly heated by its proximity to space 14. The passage of the air through screen 37 serves to break up the air thoroughly and to mix it effectively with the liquid fuel. The resultant vapors above the fuel body level are thoroughly commingled in their passage through screen 39 and are thoroughly heated and expanded by the heat from space 14 as they pass up through chamber 8 and space 53 above the same, to pipe 25.

lt will thus be obvious that my improved carbureter comprises especially simple, compact and eiicient means for effecting the purpose of my invention. Space 14 completely surrounds fuel tank 6 except above chambers 7 and 8, and these chambers are heated to a high degree of temperature by the adjacent portions of chamber 14 forming the sides of chambers 7 and 8 and the through wall 26. Pipe section 41 inserted` therein opens into air chamber'7 which is heated from space 14. Valve 42 within pipe section 41 may be controlled from pedal 43 secured to rod 44 or in any suitable way. By the operation of pedal 43 valve 42 may be opened or closed to vary the quantity of pre-heated air delivered into the gaseous mixture above screen 39 or, if preferred, to cut oif the supply of mixture-diluting air altogether.

Fuel is supplied to tank 6 through pipe 45 and may be automatically controlled by a ioat 46 vertically movable on rod 47 and provided with shut off portion 48 adapted to engage in valve seat 49 between inlet 50 and pipe 45, all as clearly shown in Fig. 4.

What l claim is g- In a carbureter, the combination of an oil chamber, a chambered body entirely inclosing said oil chamber and providing a passage for the exhaust gases, said passage entirely surrounding the sides, bottom and greater portion of the top of the oil chamber, said chambered body also providing an outlet passage for gas and an inlet passage for air, a valve for establishing communication between said two passages, a partition in said oil chamber forming a passage in communication with the air inlet and extending downwardly;7 close to and parallel with the vertical wall of the oil chamber and terminating near the bottom thereof.

`GERRIT VAN DAAM.

Witnesses:

CLIFFORD NICHOLS, M. G. SMITH. 

